Improvement in spring bed-bottoms



, W. STARKE. Spring Bed-Bottoms. No. 138,446. ParentedApril29,1s73.

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AM PHaToilrHosfeAPH/c CQ m. (ossea/vak mac-Essi UNITED STATES PATENTOFFICE.

WILLIAM STARKE, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN SPRING BED-BOTTQMS.

Specification forming part of Letters Patent No. 138,446, dated April29, 1873; application iiled September 30, 1872.

To all whom it may concern:

Be it known that I, WILLIAM STARKE, of Chicago, in the county of Cookand State of Illinois, have invented a new and useful Improvement inSpring Bed-Bottoms, of Which the following is a specication:

The nature of the present invention consists in combining transverseslats with longitudinal slats by means of eyes in the top ends of thesprings, and rods which pass through the eyes and across thelongitudinal slats and bendA down at right angles at the edges ot' theside slats and pass through the bottoni frame and prevent the uppersection from having a lateral movement relative to the lower section,While, at the same time, the upper section may have an easy verticalreciprocating movement on thesprings, as hereinafter fully described andshown.

In the drawing, Figure-l is a plan or top view of my improvedbed-bottom, Fig.2, an end elevation ofthe same; Fig. 3, a broken-planview of one of the spring-slats, showing the mortise through Which theeye of the spring passes 5 Fig. 4, a broken elevation'of one of thesprings, showing the construction of the eye.

A A represent the longitudinal slats of the bottom, and B B B thetransverse slats which support the slats A and are held to th em, ashereinafter described. The upper ends ofthe springs I haveformed on themeyesd d, Sto., by bending the Wire around some suitable form, said eyesbeing long enough to pass through the transverse slats B andlongitudinal slats A. The slats A and B, when in position, bring thelongitudinal slots or mortises of parallel to each other, so that theeyes d will readily pass I thro ugh. Wh en the eyes are in positionthrough the slats the wire rods C C C areput through the eyes d on topof the slats A and bent down at the sides ot' the bottom, as shown at DD, and put through the bottom frame G, and are then bent inward at rightangles, as shown at E, Fig. 2.

This arrangement is such that When the slats A have weight placed onthem the bent rods D D pass through the frame Gr, as shown at Fig. 2, F,the ends E preventing the slats A from rising too high.

The rods are to be made ot' such-sized Wire as will prevent the uppersection of the bottom from having a lateral movement, and they shouldhave a suitable springing quality, to

prevent them from sta-ying bent by ordina-ry use. This device differsfrom the bottom patented to B. R. Boyington, September 3,1867, first,inasmuch as in his bottom there are no transverse slats to support thelongitudinal slats; second, because he holds the springs to the slats bystraps which Will not prevent the upper section from having a lateralmot-ion when said section has the Weight of an ordinary person thereon,the straps then being loose.

By means of the eyes d, rods C,'and mortised slots the bottom is firmlyheld together and is very simple, cheap, and durable, While, at the sametime, the slats A are always held the proper distance apart.

I disclaim the eyes on the springs, as described in said Boyingtonspatent; but

I claim- The combination of the longitudinal and transverse slats A B,spring I d, and rods D, which pass through the eyes, hold the slatsA Btogether, bend down at the side, and pass through the lower section, andprevent the upper section from having a lateral motion, as and for thepurpose set forth.

WILLIAM STARKE.

Witnesses G. L. CEAPIN,

D. COLE.

